| Search in Xamin or Browse... |
SMCSTARS2 - SMC H-alpha emission stars/nebulae |
HEASARC Archive |
Overview
This database table contains a list of H-alpha emission-line stars and small nebulae in the Small Magellanic Cloud (SMC) that were discovered in an objective-prism survey. This survey was performed through an H-alpha + [N II] interference filter using the 0.90m Curtis Schmidt telescope at Cerro Tololo Inter-American Observatory (CTIO). 1898 emission-line objects were detected in the main body of the SMC, almost quadrupling the number of those discovered in previous objective-prism surveys of the same region. Among these 1898 objects are newly discovered planetary nebulae, compact H II regions, and late-type stars. Continuum intensities, the shapes and strengths of the H-alpha emission line, co-ordinates and (where available) cross-identifications are provided for the listed objects.Catalog Bibcode
1993A&AS..102..451MReferences
Meyssonnier N., Azzopardi M.
<Astron. Astrophys. Suppl. Ser. 102, 451 (1993)>
=1993A&AS..102..451M
Provenance
This version of the SMC H-alpha Emission-Line Stars and Small Nebulae Catalog of Meyssonnier and Azzopardi was created by the HEASARC in November 1997 based on the ADC/CDS machine-readable catalog J/A+AS/102/451.Remarks on Particular Objects
Remarks on paticular objects (entries with the parameter Remark set to "Y"):
Star Remarks
14 [OIII]-lines are visible on our blue-green grism plates
(hereafter b-ggp)
23 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
29 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
39 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
43 Hbeta emission-line possibly visible on our b-ggp
44 Hgamma emission-line and [OIII]-lines are visible on our b-ggp
46 Hbeta emission-line noted by Feast et al. (1960); Hbeta and possibly
Hgamma in emission reported by Ardeberg & Maurice (1977)
49 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
51 K-M star; Halpha and Hbeta emission-lines confirmed by our medium
resolution slit spectroscopy
54 [OIII]-lines are visible on our b-ggp
61 Hbeta and Hgamma emission-lines are visible on our b-ggp
85 Hbeta emission-line is visible on our b-ggp
90 part of N11 and L62
91 part of N11 and L62
98 [OIII]-lines are visible on our b-ggp
101 northern part of NGC 248, L67 and DEM16
103 southern part of NGC 248, L67 and DEM16
104 [OIII]-lines are visible on our b-ggp
133 nebulosity containing L78 and AV14
149 Hgamma, Hdelta and Hepsilon in emission reported by Feast et al. (1960);
star dominated by a very rich emission-line spectrum including among
others hydrogen, FeII and [FeII] emission-lines (Zickgraf et al. 1986)
152 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
205 part of N26, L107 and DEM38; Hbeta emission-line and [OIII]-lines are
visible on our b-ggp
206 part of N26, L107 and DEM38; Hbeta emission-line and [OIII]-lines are
visible on our b-ggp
208 part of DEM38
226 faint [OIII]-lines are visible on our b-ggp
241 [OIII]-lines are visible on our b-ggp
250 red star, Halpha to H8 emission-lines are visible on our medium
resolution slit spectra
254 Hbeta emission-line possibly visible on our b-ggp
285 carbon star according to Rebeirot, Azzopardi & Westerlund (1993); Halpha
and Hgamma emission-lines confirmed by our medium resolution slit
spectroscopy
290 [OIII]-lines are visible on our b-ggp
297 very faint [OIII]-lines are visible on our b-ggp
301 wide [OIII]-lines are visible on our b-ggp
316 nebulosity containing VLE Nos. 5 and 6 found by Morgan (1984)
317 part of DEM50; diffuse [OIII]-lines are visible on our b-ggp
322 part of DEM50
325 Hbeta and Hgamma emission-lines as well as strong [OIII]-lines are
visible on our b-ggp
371 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
406 [OIII]-lines are visible on our b-ggp
467 [OIII]-lines are visible on our b-ggp
482 faint [OIII]-lines are visible on our b-ggp
491 faint [OIII]-lines are visible on our b-ggp
498 diffuse Hbeta emission-line possibly visible on our b-ggp
518 Hbeta emission-line is visible on our b-ggp
519 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
547 part of N49
548 part of N49
642 carbon star according to Rebeirot, Azzopardi & Westerlund (1993);
emission possibly visible on the Halpha line
652 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
696 southern part of DEM77
699 northern part of DEM77
700 [OIII]-lines are visible on our b-ggp
739 Hgamma to H8 balmer emission-lines were noted by Azzopardi & Vigneau
(1975); Hbeta to H13 as well as other lines whose FeII and [FeII]
multiplets reported in emission by Azzopardi et al. (1981) and Zickgraf
et al. (1989); Hbeta emission-line is confirmed by our b-ggp
751 Hbeta emission-line is visible on our b-ggp
771 Hbeta emission-line possibly visible on our b-ggp
832 FeII and [FeII] emission-lines reported first by Feast (1968); VV Cephei
confirmed, with a late K or early M-type component by Feast & Webster
(1974), Sanduleak & Pesch (1981), and Walker (1983). Recent high
resolution spectroscopy observation by Heydari-Malayeri & Leisy (1993)
878 Hbeta emission-line possibly visible on our b-ggp
891 [OIII]-lines are visible on our b-ggp
905 Hbeta emission-line is visible on our b-ggp
933 Hbeta and Hgamma emission-lines are visible on our b-ggp
943 Hbeta emission-line and [OIII]-lines are visible on our b-ggp
966 carbon star according to Rebeirot, Azzopardi & Westerlund (1933);
emission possibly visible in the Halpha line, while Hbeta line is
visible in absorption on our medium resolution slit spectrum
999 [OIII]-lines are visible on our b-ggp
1011 strong [OIII]-lines are visible on our b-ggp
1017 narrow Hbeta emission-line is visible on our b-ggp
1046 Hbeta emission-line is visible on our b-ggp
1049 emission-line object within N62 and DEM93
1071 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
1088 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
1091 Hbeta emission-line and [OIII]-lines are visible on our b-ggp
1136 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
1149 Hbeta, Hgamma and Hdelta emission-lines were noted by Feast et al.
(1960) sharp Hgamma line in emission reported by Azzopardi & Vigneau
(1975)
1271 nucleus of N72 and DEM112
1274 part of N72 and DEM112
1280 possible VLE within DEM111
1303 Hbeta emission-line is visible on our b-ggp
1304 Hbeta emission-line possibly visible on our b-ggp
1321 Hbeta emission-line possibly visible on our b-ggp
1344 Hbeta emission-line is visible on our b-ggp
1350 star within DEM119
1357 [OIII]-lines are visible on our b-ggp
1365 Halpha and Hbeta emission-lines confirmed by our medium resolution slit
spectroscopy
1443 narrow Hbeta emission-line possibly visible on our b-ggp
1454 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
1508 part of DEM126
1512 part of DEM126; faint and extended [OIII]-lines are visible on our b-ggp
1514 part of DEM126
1520 part of DEM126
1522 faint and extended [OIII]-lines are visible on our b-ggp
1536 nucleus of DEM129
1552 Hbeta, Hgamma and Hdelta emission-lines reported by Feast et al. (1960)
1625 Hbeta in emission and Hgamma filled in by emission reported by Feast et
al. (1960), and Ardeberg & Maurice (1977)
1663 object within N80A
1676 [OIII]-lines are visible on our b-ggp
1677 Hbeta and Hgamma in emission reported by Feast et al. (1960)
1682 faint [OIII]-lines are visible on our b-ggp
1687 part of N81 and DEM138
1688 nucleus of N81 and DEM138
1709 Hbeta emission-line and [OIII]-lines are visible on our b-ggp
1714 [OIII]-lines are visible on our b-ggp
1721 Hbeta emission-line is visible on our b-ggp
1752 Hbeta emission-line possibly visible on our b-ggp
1755 Hbeta emission-line is visible on our b-ggp
1759 Balmer and [FeII] emission-lines among others reported by
Heydari-Malayeri (1990)
1773 part of DEM147
1783 part of DEM147
1790 bright part of NGC460 and DEM151
1792 compact HII region within NGC460
1794 bubble within NGC460
1795 part of DEM152
1796 Hbeta emission-line and [OIII]-lines are visible on our b-ggp
1797 part of DEM152
1819 narrow Hbeta emission-line is visible on our b-ggp
1820 Hbeta emission-line is visible on our b-ggp
1843 Hbeta emission-line is visible on our b-ggp
1858 carbon star according to Rebeirot, Azzopardi & Westerlund (1993); Halpha
and Hbeta emission-lines confirmed by our medium resolution slit
spectroscopy. Symbiotic star according to high resolution
spectroscopy by van Winckel (1993)
1884 Hbeta and Hgamma emission-lines as well as [OIII]-lines are visible on
our b-ggp
Parameters
Name
The Source designation derived from the catalog running number (catalog_number)
which increases in order of the 2000 equinox RA and the IAU standard designation
for this catalog of MA93.
RA
The right ascension in the default equinox (given to the nearest tenth of
a second of time in the original catalog).
Dec
The declination in the default equinox (given to the nearest arcsecond in
the original catalog).
LII
The galactic longitude of the object.
BII
The galactic latitude of the object.
Catalog_Number
The catalog running number: this increases with Right Ascension (2000).
Catalog_Number_Flag
A colon (:) or a double colon (::) indicates that the Halpha emission-line
nature of the object, mainly due to its severe faintness or because it is a
late-type star, is doubtful or very doubtful, respectively.
Slit_Spectra
A flag indicating the availability of slit spectra: "S" means that subsequent
medium resolution spectroscopic observations were obtained by the authors of
the catalog, while "O" indicates that previous spectroscopic observations
were reported by others, viz.:
- Aller, Keyes, Ross & O'Mara B.J. 1981, MNRAS, 194, 613
- Ardeberg & Maurice 1977, A&AS, 30, 261
- Azzopardi & Breysacher 1979, A&A, 75, 120
- Azzopardi, Breysacher & Muratorio 1981, A&A, 95, 191
- Barlow 1987, MNRAS, 227, 161
- Boroson & Liebert 1989, ApJ, 339, 244
- Feast, Thackeray & Wesselink 1960, MNRAS, 121, 337
- Heydari-Malayeri 1990, A&A, 234, 233
- Heydari-Malayeri & Leisy 1993, in preparation
- Meatheringham & Dopita 1991a, ApJS, 75, 407
- Meatheringham & Dopita 1991b, ApJS, 76, 1085
- Monk, Barlow & Clegg 1988, MNRAS, 234, 583
- Russell & Dopita 1990, ApJS, 74, 93
- Webster 1976, MNRAS, 174, 573
- Westerlund, Azzopardi, Breysacher & Rebeirot 1991, A&AS, 91, 425
- Winckel van, Duerbeck & Schwarz 1993, A&AS, 102, 401
- Zickgraf, Wolf, Stahl, Leitherer & Appenzeller 1986, A&A, 163, 119
- Zickgraf, Wolf, Stahl & Humphreys 1989, A&A, 220, 206
Relative_Intensity
A Rough estimate of the relative intensity of the H-alpha line obtained from
the measurement of the optical density (0 - 5) of the emission-line peak on
the digitized image of the 4-hour exposure objective-prism plate.
Spectrum_ID
A three digit code describing the spectrum based on the authors' visual
scrutiny of their deepest objective-prism plate. The meaning of the three
digits describing the spectrum is as follows:
(a) the first digit refers to the relative intensity of the continuum quoted
on a scale from 1 (faint) to 5 (overexposed), where "2-3" is an optimum
exposure; the additional symbol "T" denotes that a trace of continuum is
barely visible above the sky background on the plate, while an
intensity "0" indicates that the particular object does not show
any continuous spectrum underlying the emission-lines;
(b) the second digit refers to the relative strength of the H-alpha
emission-line estimated on a scale from 1 to 5, in which "1" represents
a very weak line and "5" a very strong line;
(c) the third digit refers to an estimate of the width of the H-alpha
emission-line feature, where "1" denotes a sharp line, "2" a line
appreciably widened, and "3" a line which is diffuse to very diffuse.
Type_Flag
A code indicating the nature or possible nature (:) of the object according
to the following scheme:
1 = H II region or filament
2 = supernova remnant
3 = bubble or loop
4 = compact or small HII region
5 = Planetary Nebula (PN) or PN candidate (:)
6 = Very-Low-Excitation (VLE) object or VLE candidate (:)
7 = Wolf-Rayet star
8 = Peculiar H-alpha emission-line star with Fe II and [Fe II] emission
9 = Late-type star with emission or suspected emission in the H-alpha line
Cross_ID
This field contains information on cross-identifications and/or the star's
location with respect to the SMC cluster system. The cross-identifications
are given by a letter abbreviation followed by the number assigned by the
respective authors who identified the object. The cluster information refers
to the star's location in connection to the SMC cluster system: a given star
may lie either within a cluster or in its nearby surrounding field, but that,
of course, does not necassarily imply cluster membership. The name of the SMC
cluster is given by a letter abbreviation (codes beginning B, H, HW, K, LN,
and NGC) followed by the number assigned by the author who previously found the
object. The following codes are used for the cross-identifications and cluster
designations:
AB Azzopardi & Breysacher 1979, A&A, 75, 120
ARP Arp 1959, AJ, 64, 254
AV Azzopardi & Vigneau 1982, A&AS, 50, 291
B Bruck 1976, Occas. Rep. R. Obs. Edinburgh, No 1
DEM Davies, Elliott & Meaburn 1976, Mem.RAS, 81, 79
H Hodge 1986, PASP, 98, 1113
HW Hodge & Wright 1974, AJ, 79, 858
J Jacoby 1980, ApJS, 42, 1
K Kron 1956, PASP, 68, 125
L Lindsay 1961, AJ, 66, 169
LN Lindsay 1958, MNRAS, 118, 172
MG Morgan & Good 1985, MNRAS, 213, 491
MN Morgan 1992, MNRAS, 258, 639
MO Morgan 1984, MNRAS, 209, 241
N Henize 1956, ApJS, 2, 315 (emission nebulae)
NGC Dreyer 1888, Mem.RAS, XLIX
PMMR Prevot, Martin, Maurice, Rebeirot & Rousseau 1983, A&AS, 53, 255
R Feast, Thackeray & Wesselink 1960, MNRAS, 121, 337
RAW Rebeirot, Azzopardi & Westerlund 1993, A&AS, 97, 603
S Henize 1956, ApJS, 2, 315 (emission-line stars)
SA Sanduleak 1968, AJ, 73, 246
SK Sanduleak 1989, AJ, 98, 825
SMP Sanduleak, McConnel & Philip 1978, PASP, 90, 621
SP Sanduleak & Pesch 1981, PASP, 93, 431
Note that Lindsay (1961) did not provide finding charts for several emission
objects listed in his catalogue, thus their identification was possible only
with the help of their coordinates. When Lindsay's coordinates for an object
do not match the co-ordinates in this catalog adequately, the Lindsay
cross-identification "L" number is followed by a colon.
Remark
A flag that is set to "Y" if there is a remark for the particular object.
See the section Remarks_on_particular_objects for the remarks.
Class
Browse classification based on the parameter type_flag. Notice that VLE or
possible VLE objects have been classed as "unidentified".
Contact Person
Questions regarding the SMCSTARS2 database table can be addressed to the HEASARC Help Desk.Page Author: Browse Software Development Team
Last Modified: Monday, 16-Sep-2024 17:35:06 EDT
- HEASARC Director: Dr. Andy Ptak
- NASA Official: Dr. Andy Ptak
- Web Curator: J.D. Myers
- Last Modified: 16-Sep-2024